package com.xidian.pachong;

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;


import java.net.URL;
import java.util.ArrayList;
import java.util.List;

public class HtmlParseUtil {

    public static void main(String[] args) throws Exception{

/*        String url = "https://search.jd.com/Search?keyword=java&enc=utf-8";

        // 解析网页
        Document document = Jsoup.parse(new URL(url), 30000);

        Element element = document.getElementById("J_goodsList");
        //System.out.println(element.html());
        // 获取所有li元素
        Elements elements = element.getElementsByTag("li");

        for (Element el : elements) {
            String img = el.getElementsByTag("img").eq(0).attr("data-lazy-img");
            String price = el.getElementsByClass("p-price").eq(0).text();
            String title = el.getElementsByClass("p-name").eq(0).text();

            System.out.println("========================");

            System.out.println(img);
            System.out.println(price);
            System.out.println(title);
        }*/

        ArrayList<Content> goodsList = (ArrayList<Content>) parseJD("java");
        for (Content content : goodsList) {
            System.out.println(content);
        }


    }



    public static List<Content> parseJD(String keywords)  throws Exception{
        String url = "https://search.jd.com/Search?keyword="+keywords;
        Document document = Jsoup.parse(new URL(url), 30000);
        Element element = document.getElementById("J_goodsList");
        Elements elements = element.getElementsByTag("li");

        ArrayList<Content> goodsList = new ArrayList<>();

        for (Element el : elements) {
            String img = el.getElementsByTag("img").eq(0).attr("data-lazy-img");
            String price = el.getElementsByClass("p-price").eq(0).text();
            String title = el.getElementsByClass("p-name").eq(0).text();
            Content content = new Content(title, img, price);
            goodsList.add(content);

        }
        return goodsList;
    }




}
